What is the probability that 8 9 or 10 individuals shopped

A recent survey of 15,000 Nebraskans concluded that 35% of Nebraskans did some shopping on Black Friday. A random sample of 20 individuals was taken.

1) What is the probability that exactly 4 individuals shopped on Black Friday?

2) What is the probability that at least 6 individuals shopped on Black Friday?

3) What is the probability that 8, 9, or 10 individuals shopped on Black Friday?

4) What are the mean and standard deviation for this sample of 20 Nebraskans

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What is the probability that 8 9 or 10 individuals shopped : a recent survey of 15000 nebraskans concluded that 35 of nebraskans did some shopping on black friday. a random sample

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